Question 1198984
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Hey if you're using x and y, then what's with the x1 and x2?

Sometimes people use x and y with these problems and sometimes 
they use x1 and x2.

Repost the problem with either x and y or x1 and x2, not both.

Also look at two exactly like it I solved yesterday.

http://www.algebra.com/tutors/students/your-answer.mpl?question=1198985

http://www.algebra.com/tutors/students/your-answer.mpl?question=1198296

Edwin</pre>